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Gulf Formula RNX 5w-30 Fully Synthetic Diesel Engine Oil

Gulf Formula RNX 5w-30 Fully Synthetic Diesel Engine Oil


Gulf Formula RNX 5w-30 - 1 Litre

1 Litre


Gulf Formula RNX 5w-30 - 4 Litres

4 Litres


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  • Description
  • Benefits
  • Specifications
  • Technical Info
  • Shipping Explained

Gulf Formula RNX 5w-30 Fully Synthetic Diesel Engine Oil

Gulf Formula RNX is synthetic, catalyst compatible passenger car motor oil specially designed using most modern additive chemistry meeting Low SAPS (Sulphated Ash, Phosphorous & Sulphur) requirements for vehicles meeting Euro IV norms. It has been exclusively developed for use in high performance gasoline and diesel engines requiring low SAPS oil with HTHS greater than 3.5mPa.s in passenger cars and light vans fitted with Diesel Particulate Filter (DPF) and Three Way Catalyst (TWC) to extend life and maintain efficiency of these after treatment devices. It provides exceptional wear protection and minimizes deposits in engine and turbocharger. It is developed to exceed the service fill requirements of most recent models of Renault and other OEMs requiring ACEA C4 type of oils.

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  • Low ash content reduces particulate build-up in diesel particulate filters used in diesel cars
  • Latest additive technology with active cleaning agents reduces piston deposits, sludge build-up and soot related oil thickening facilitating extended engine life
  • Excellent thermo-oxidative stability reduces oil degradation and enables extended drain intervals
  • Excellent antiwear technology leads to superior wear protection
  • Low volatility ensures reduced oil consumption and emissions
  • Excellent low temperature property aids cold start and protects against wear at start-up


  • Formula RNX 5w 30 oil combines quality synthetic base-stocks and a top-of-the-range additive package meeting or exceeding the requirements of the following international specifications:
    • ACEA C4
    • Mercedes Benz MB 226.51
    • Renault RN 0720 - Renault approved engine oil

Technical Information:

What should Gulf Formula RNX be used for?

  • Formula RNX is recommended for the latest diesel Renault Cars (2008 onwards) fitted with a diesel particulate filter requiring oils meeting Renault specification RN 0720.
  • Also suitable for the latest generation of high performance diesel vehicles fitted with a diesel particulate filter (DPF) or two way catalyst (TWC) requiring catalyst compatible oils meeting ACEA C4 specifications.
  • These oils may be unsuitable for use in some engines requiring high viscosity grade oils or in markets where fuel sulphur content is high (please consult your owner's manual / handbook).


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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Brand: Gulf
Oil Type: Fully Synthetic
DPF Compatible: Yes

DPF Compatible

This Engine Oil is DPF (diesel particulate filter) Compatible.

What’s a DPF?

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